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21.发明授权公开(公告)号：US09609653B2
公开(公告)日：2017-03-28
申请号：US14611700
申请日：2015-02-02
Applicant: NATIONAL INSTRUMENTS CORPORATION
Inventor： Stephen L. Dark , Daniel J. Baker , Johnathan R. W. Ammerman
CPC classification number: H04W72/0453 , G01R13/0272 , G01R23/165 , H03M1/121 , H04B1/0003 , H04B1/0025
Abstract: Embodiments are described of devices and methods for processing a signal using a plurality of vector signal generators (VSGs). A digital signal may be provided to a plurality of signal paths, each of which may process a respective frequency band of the signal, the respective frequency bands having regions of overlap. The gain and phase of each signal path may be adjusted such that continuity of phase and magnitude are preserved through the regions of overlap. The adjustment of gain and phase may be accomplished by a complex multiply with a complex calibration constant. The calibration constant may be determined for each signal path by comparing the gain and phase of one or more calibration tones generated within each region of overlap. Each signal path may comprise a VSG to convert the respective signal to an analog signal, which may be combined to obtain a composite signal.
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22.发明申请Spectral Stitching Method to Increase Instantaneous Bandwidth in Vector Signal Generators 有权用于增加矢量信号发生器瞬时带宽的光谱拼接方法公开(公告)号：US20160113013A1
公开(公告)日：2016-04-21
申请号：US14611700
申请日：2015-02-02
Applicant: NATIONAL INSTRUMENTS CORPORATION
Inventor： Stephen L. Dark , Daniel J. Baker , Johnathan R. W. Ammerman
CPC classification number: H04W72/0453 , G01R13/0272 , G01R23/165 , H03M1/121 , H04B1/0003 , H04B1/0025
Abstract: Embodiments are described of devices and methods for processing a signal using a plurality of vector signal generators (VSGs). A digital signal may be provided to a plurality of signal paths, each of which may process a respective frequency band of the signal, the respective frequency bands having regions of overlap. The gain and phase of each signal path may be adjusted such that continuity of phase and magnitude are preserved through the regions of overlap. The adjustment of gain and phase may be accomplished by a complex multiply with a complex calibration constant. The calibration constant may be determined for each signal path by comparing the gain and phase of one or more calibration tones generated within each region of overlap. Each signal path may comprise a VSG to convert the respective signal to an analog signal, which may be combined to obtain a composite signal.
Abstract translation: 对使用多个矢量信号发生器（VSG）处理信号的装置和方法进行了描述。 可以向多个信号路径提供数字信号，每个信号路径可以处理信号的相应频带，各个频带具有重叠区域。 可以调整每个信号路径的增益和相位，使得通过重叠区域保持相位和幅度的连续性。 增益和相位的调整可以通过复数乘以复合校准常数来实现。 可以通过比较在每个重叠区域内产生的一个或多个校准音调的增益和相位，来为每个信号路径确定校准常数。 每个信号路径可以包括VSG以将相应的信号转换成模拟信号，模拟信号可以被组合以获得复合信号。
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23.发明授权Computing I/Q impairments at system output based on I/Q impairments at system input 有权基于系统输入的I / Q损伤计算系统输出的I / Q损伤公开(公告)号：US09020019B2
公开(公告)日：2015-04-28
申请号：US14220284
申请日：2014-03-20
Applicant: National Instruments Corporation
Inventor： Stephen L. Dark
CPC classification number: H04L25/08 , H04B17/104 , H04B17/11 , H04B17/21 , H04B17/309 , H04B17/373 , H04B17/391 , H04L1/248
Abstract: Systems and methods for measuring transmitter and/or receiver I/Q impairments are disclosed, including iterative methods for measuring transmitter I/Q impairments using shared local oscillators, iterative methods for measuring transmitter I/Q impairments using intentionally-offset local oscillators, and methods for measuring receiver I/Q impairments. Also disclosed are methods for computing I/Q impairments from a sampled complex signal, methods for computing DC properties of a signal path between the transmitter and receiver, and methods for transforming I/Q impairments through a linear system.
Abstract translation: 公开了用于测量发射机和/或接收机I / Q损伤的系统和方法，包括使用共享本地振荡器测量发射机I / Q损伤的迭代方法，使用有意偏移的本地振荡器测量发射机I / Q损伤的迭代方法，以及方法 用于测量接收机I / Q损伤。 还公开了用于从采样的复信号计算I / Q损伤的方法，用于计算发射机和接收机之间的信号路径的DC特性的方法，以及通过线性系统变换I / Q损伤的方法。
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公开(公告)号：US08897349B2
公开(公告)日：2014-11-25
申请号：US14172992
申请日：2014-02-05
Applicant: National Instruments Corporation
Inventor： Stephen L. Dark , Christopher J. Behnke
CPC classification number: H04B17/11 , H04B15/00 , H04B17/21 , H04B17/309 , H04B17/391 , H04L1/248 , H04L25/08
Abstract: Systems and methods for measuring transmitter and/or receiver I/Q impairments are disclosed, including iterative methods for measuring transmitter I/Q impairments using shared local oscillators, iterative methods for measuring transmitter I/Q impairments using intentionally-offset local oscillators, and methods for measuring receiver I/Q impairments. Also disclosed are methods for computing I/Q impairments from a sampled complex signal, methods for computing DC properties of a signal path between the transmitter and receiver, and methods for transforming I/Q impairments through a linear system.
Abstract translation: 公开了用于测量发射机和/或接收机I / Q损伤的系统和方法，包括使用共享本地振荡器测量发射机I / Q损伤的迭代方法，使用有意偏移的本地振荡器测量发射机I / Q损伤的迭代方法，以及方法 用于测量接收机I / Q损伤。 还公开了用于从采样的复信号计算I / Q损伤的方法，用于计算发射机和接收机之间的信号路径的DC特性的方法，以及通过线性系统变换I / Q损伤的方法。
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公开(公告)号：US08861579B2
公开(公告)日：2014-10-14
申请号：US14220364
申请日：2014-03-20
Applicant: National Instruments Corporation
Inventor： Stephen L. Dark , Christopher J. Behnke
CPC classification number: H04B17/11 , H04B15/00 , H04B17/21 , H04B17/309 , H04B17/391 , H04L1/248 , H04L25/08
Abstract: Systems and methods for measuring transmitter and/or receiver I/Q impairments are disclosed, including iterative methods for measuring transmitter I/Q impairments using shared local oscillators, iterative methods for measuring transmitter I/Q impairments using intentionally-offset local oscillators, and methods for measuring receiver I/Q impairments. Also disclosed are methods for computing I/Q impairments from a sampled complex signal, methods for computing DC properties of a signal path between the transmitter and receiver, and methods for transforming I/Q impairments through a linear system.
Abstract translation: 公开了用于测量发射机和/或接收机I / Q损伤的系统和方法，包括使用共享本地振荡器测量发射机I / Q损伤的迭代方法，使用有意偏移的本地振荡器测量发射机I / Q损伤的迭代方法，以及方法 用于测量接收机I / Q损伤。 还公开了用于从采样的复信号计算I / Q损伤的方法，用于计算发射机和接收机之间的信号路径的DC特性的方法，以及通过线性系统变换I / Q损伤的方法。
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Patent Agency Ranking
26.发明授权Mechanism for measuring transmitter impairments using offset local oscillators 有权使用偏移本地振荡器测量发射机损伤的机制公开(公告)号：US08699552B2
公开(公告)日：2014-04-15
申请号：US13886986
申请日：2013-05-03
Applicant: National Instruments Corporation
Inventor： Stephen L. Dark , Christopher J. Behnke
CPC classification number: H04B17/11 , H04B15/00 , H04B17/21 , H04B17/309 , H04B17/391 , H04L1/248 , H04L25/08
Abstract: Systems and methods for measuring transmitter and/or receiver I/Q impairments are disclosed, including iterative methods for measuring transmitter I/Q impairments using shared local oscillators, iterative methods for measuring transmitter I/Q impairments using intentionally-offset local oscillators, and methods for measuring receiver I/Q impairments. Also disclosed are methods for computing I/Q impairments from a sampled complex signal, methods for computing DC properties of a signal path between the transmitter and receiver, and methods for transforming I/Q impairments through a linear system.
Abstract translation: 公开了用于测量发射机和/或接收机I / Q损伤的系统和方法，包括使用共享本地振荡器测量发射机I / Q损伤的迭代方法，使用有意偏移的本地振荡器测量发射机I / Q损伤的迭代方法，以及方法 用于测量接收机I / Q损伤。 还公开了用于从采样的复信号计算I / Q损伤的方法，用于计算发射机和接收机之间的信号路径的DC特性的方法，以及通过线性系统变换I / Q损伤的方法。
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公开(公告)号：US20130243061A1
公开(公告)日：2013-09-19
申请号：US13887186
申请日：2013-05-03
Applicant: NATIONAL INSTRUMENTS CORPORATION
Inventor： Stephen L. Dark
IPC: H04B17/00
CPC classification number: H04B17/11 , H04B15/00 , H04B17/21 , H04B17/309 , H04B17/391 , H04L1/248 , H04L25/08
Abstract: Systems and methods for measuring transmitter and/or receiver I/Q impairments are disclosed, including iterative methods for measuring transmitter I/Q impairments using shared local oscillators, iterative methods for measuring transmitter I/Q impairments using intentionally-offset local oscillators, and methods for measuring receiver I/Q impairments. Also disclosed are methods for computing I/Q impairments from a sampled complex signal, methods for computing DC properties of a signal path between the transmitter and receiver, and methods for transforming I/Q impairments through a linear system.
Abstract translation: 公开了用于测量发射机和/或接收机I / Q损伤的系统和方法，包括使用共享本地振荡器测量发射机I / Q损伤的迭代方法，使用有意偏移的本地振荡器测量发射机I / Q损伤的迭代方法，以及方法 用于测量接收机I / Q损伤。 还公开了用于从采样的复信号计算I / Q损伤的方法，用于计算发射机和接收机之间的信号路径的DC特性的方法，以及通过线性系统变换I / Q损伤的方法。
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28.发明申请Mechanism for Measuring Transmitter Impairments Using Offset Local Oscillators 有权使用偏移本地振荡器测量变送器损伤的机制公开(公告)号：US20130243057A1
公开(公告)日：2013-09-19
申请号：US13886986
申请日：2013-05-03
Applicant: NATIONAL INSTRUMENTS CORPORATION
Inventor： Stephen L. Dark , Christopher J. Behnke
IPC: H04B17/00
CPC classification number: H04B17/11 , H04B15/00 , H04B17/21 , H04B17/309 , H04B17/391 , H04L1/248 , H04L25/08
Abstract: Systems and methods for measuring transmitter and/or receiver I/Q impairments are disclosed, including iterative methods for measuring transmitter I/Q impairments using shared local oscillators, iterative methods for measuring transmitter I/Q impairments using intentionally-offset local oscillators, and methods for measuring receiver I/Q impairments. Also disclosed are methods for computing I/Q impairments from a sampled complex signal, methods for computing DC properties of a signal path between the transmitter and receiver, and methods for transforming I/Q impairments through a linear system.
Abstract translation: 公开了用于测量发射机和/或接收机I / Q损伤的系统和方法，包括使用共享本地振荡器测量发射机I / Q损伤的迭代方法，使用有意偏移的本地振荡器测量发射机I / Q损伤的迭代方法，以及方法 用于测量接收机I / Q损伤。 还公开了用于从采样的复信号计算I / Q损伤的方法，用于计算发射机和接收机之间的信号路径的DC特性的方法，以及通过线性系统变换I / Q损伤的方法。
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公开(公告)号：US10164670B2
公开(公告)日：2018-12-25
申请号：US15692596
申请日：2017-08-31
Applicant: NATIONAL INSTRUMENTS CORPORATION
Inventor： Stephen L. Dark , Christopher N. White
Abstract: Methods and systems are disclosed for using a single receiving device, such as a single VSA, to capture and digitize multiple time-domain acquisitions of a repeating signal at different center frequencies, to create a single time-domain waveform having a bandwidth greater than the real-time instantaneous bandwidth of the receiving device. Specifically, one or more signal processing paths may process the multiple digitized acquisitions of the repeating signal, either sequentially or in parallel, such that the processed acquisitions may be aggregated into a representation of one or more repetitions of the repeating signal.
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30.发明授权公开(公告)号：US09979585B2
公开(公告)日：2018-05-22
申请号：US15679004
申请日：2017-08-16
Applicant: NATIONAL INSTRUMENTS CORPORATION
Inventor： Stephen L. Dark , Daniel J. Baker , Johnathan R. W. Ammerman
CPC classification number: H04L27/3827 , H04B1/12 , H04B17/00 , H04B17/0085 , H04B17/21 , H04B17/309 , H04L7/0087 , H04W24/08 , H04W56/003 , H04W72/044
Abstract: Various embodiments are described of devices and associated methods for processing a signal using a plurality of vector signal analyzers (VSAs). An input signal may be split and provided to a plurality of VSAs, each of which may process a respective frequency band of the signal, where the respective frequency bands have regions of overlap. Each VSA may adjust the gain and phase of its respective signal such that continuity of phase and magnitude is preserved through the regions of overlap. The correction of gain and phase may be accomplished by a complex multiply with a complex calibration constant. A complex calibration constant may be determined for each VSA by comparing the gain and phase of one or more calibration tones generated with each region of overlap, as measured by each of the VSAs.
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